Answer:
C
Explanation:
The conducting cone it's just the "tubes" that conduct air to the alveoli (i.e. nose, trachea, bronchi, bronchioles). On the contrary, the respiratory zone refers to the respiratory bronchioles and alveoli, because it is there where the gas exchanges occur in the lungs.
Its extremely dangerous due to its unpredictable results.
1 to 2 years approximately would pass before the first deficiency of vitamin A symptoms would appear
- Anemia caused by a vitamin deficiency typically takes months or years to develop.
- At first, signs and symptoms may be mild, but as the deficit gets worse, they typically become more obvious.
- Additionally, vitamin A promotes the development and activity of white blood cells, participates in bone remodeling, aids in the maintenance of healthy endothelium cells, which line the internal surfaces of the body, and controls cell growth and division, including that required for reproduction.
- Preformed vitamin A and retinol are the two main types of vitamin A found in human diets (retinol, retinyl esters
the symptoms of vitamin A deficiency include:
- Eye dryness The most well-known effects of vitamin A insufficiency include eye problems.
- Night Blindness, Infertility and Difficulty Conceiving, Delayed Growth,
- Throat and Chest Infections, Poor Wound Healing, Acne and Breakouts, and
- Delayed Growth are some of the symptoms.
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